export type SupportAttachmentType = 'image' | 'audio'
export type SupportMessageSender = 'user' | 'admin'
export type SupportMessageStatus = 'sending' | 'sent' | 'seen'

export type SupportMessageReplyTo = {
  id: string
  sender?: SupportMessageSender
  text?: string
  attachment?: {
    type: 'image' | 'audio'
    url: string
    name?: string
  } | null
}

export interface SupportAttachment {
  id: string
  type: SupportAttachmentType
  url: string
  name: string
  size?: number
  mimeType?: string
  durationMs?: number
  file?: File
  uploading?: boolean
  uploadProgress?: number
}

export interface SupportMessage {
  id: string
  sender: SupportMessageSender
  text?: string
  createdAt: string
  createdAtRaw?: string | number | Date | null
  status?: SupportMessageStatus
  attachments?: SupportAttachment[]
  replyTo?: SupportMessageReplyTo | null
}

export interface SupportConversation {
  id: string
  userName: string
  avatar: string
  online: boolean
  unreadCount: number
  lastSeenText: string
  lastMessagePreview: string
  updatedAtText: string
  messages: SupportMessage[]
}

export interface ComposerSendPayload {
  text: string
  attachments: SupportAttachment[]
  replyTo?: SupportMessageReplyTo | null
}